diff --git a/include/timer.h b/include/timer.h
index 58ffdc49..9c07747c 100644
--- a/include/timer.h
+++ b/include/timer.h
@@ -19,7 +19,7 @@
 #ifndef _TIMER_H_
 #define _TIMER_H_
 /* underlying clock rate in HZ */
-#include <SDL/SDL.h>
+#include <SDL.h>
 
 extern Bit32u LastTicks;
 
@@ -27,8 +27,6 @@ extern Bit32u LastTicks;
 
 #define GetTicks() SDL_GetTicks()
 
-extern bool TimerAgain;
-
 typedef void (*TIMER_TickHandler)(Bitu ticks);
 typedef void (*TIMER_MicroHandler)(void);
 typedef void (*TIMER_DelayHandler)(void);